Upholstery types: Xtreme Plus: fire retardant (class 1) - washableInter/Vene™ Anti-Bacterial: anti-bacterial/microbial - fire retardantAnti-Bacterial Vinyl: effective against MRSA and other bacteria - BS 5852 Ignition Source 5 BS 7176 Medium HazardWill support a weight of up to 110kgTwo year warrantyPressure relieving foam can be added to this chair if ordered at the same time for factory fitting. Call 0800 954 9001 and quote 601-135 for more details.Adjustable height legs and rear-fitting housekeeping wheels are also available as optional extras: for more information please click on Live Chat to speak to one of our knowledgeable customer sales specialists